Micah, please take a look in the Marvin thread
where I'm explaining im my most recent post why at least 5 highlight colours are crucial
for me in e-reader software.
While I would welcome unlimited highlight colours in Marvin, I can understand why Kris is limiting them to 5. However, only a single
highlight colour is unacceptable to me, especially on any screen offering the display of millions
of colours. A single highlight colour has always been a weakness for the traditional Kindle e-ink devices, but it's completely inexcusable on Kindle Fire and in Kindle apps on full-blown tablets.
I definitely think Bluefire Reader needs at least the 5 highlight colours offered by Marvin if it wishes to remain competitive.